update_field and User Field Type

• deydod

• January 14, 2016 at 4:24 am

Hi

I’ve been with ACF for a few years now and it is a part of every project I build.

I have a website that a user can click “Follow” on author page and I would like to save that info in User Field Type called “user_followed_users”.

All works good so far, however in database the info is saved as serialized object of that user. Moreover if I select multiple users, it is saved as an array of user objects.

How can easily add/remove users from the list and update is through update_field?

Currently I have a solution but it takes 50 lines of code just to create new array of IDs. Is there a better way.

• deydod

• January 14, 2016 at 4:35 am

Here is my optimized code if needed.

if ( (is_user_logged_in()) && ($_GET['action'] == 'follow') ) {
	$user_followed_users = get_field('user_followed_users', 'user_'.$current_user->ID);
	$user_followed_users_temp = array();
	if (is_array($user_followed_users)) {
		foreach($user_followed_users as $user) {
			$user_followed_users_temp[] = $user['ID'];
		}
		if (!in_array($curauth->ID, $user_followed_users_temp)) {
			$user_followed_users_temp[] = $curauth->ID;
		} else {
			// Clicking twice will remove the user form user followed list
			if(($key = array_search($curauth->ID, $user_followed_users_temp)) !== false) {
				unset($user_followed_users_temp[$key]);
			}
		}
	} else {
		$user_followed_users_temp = array($curauth->ID);
	}
	update_field('user_followed_users', $user_followed_users_temp, 'user_'.$current_user->ID);
}